Huawei FusionCol8000-E240 User Manual page 59

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
Table 3-8 Signal table
No.
1
2
3
4
5
6
7
8
Procedure
Step 1 Connect one end of the water sensor cable to the water sensor.
Step 2 Route the signal cable through the signal cable hole at the bottom of the electric
control box.
Step 3 Connect the signal cable to X502 terminals 1 and 2.
If a water sensor (rope-type) is to be connected, connect the signal cable to
terminals X201 and X202.
Issue 02 (2021-04-15)
NO TE
The preceding figure shows the arrangement of signal terminals X502, X504, and X505.
X501 X502
Smoke Water sensor
sensor
Smoke Water sensor
sensor
Remote Fresh air
startup/ damper 24 V
shutdown DC
Remote Fresh air
startup/ damper GND
shutdown
Common Fresh air
alarm 1+ damper U
(feedback)
Common Fresh air
alarm 1– damper Y
(control)
Common Reserved
alarm 2+
Common Reserved
alarm 2–
NO TICE
Copyright © Huawei Technologies Co., Ltd.
3 System Installation (Building Scenario)
X504
Outdoor exhaust air
damper 24 V DC
Outdoor exhaust air
damper GND
Outdoor exhaust air
damper U (feedback)
Outdoor exhaust air
damper Y (control)
Indoor supply air
damper 24 V DC
Indoor supply air
damper GND
Indoor supply air
damper U (feedback)
Indoor supply air
damper Y (control)
X505
Indoor return air
damper 24 V DC
Indoor return air
damper GND
Indoor return air
damper U
(feedback)
Indoor return air
damper Y
(control)
Fresh air exhaust
damper 24 V DC
Fresh air exhaust
damper GND
Fresh air exhaust
damper U
(feedback)
Fresh air exhaust
damper Y
(control)
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